Multicast and Scalable Networks- Broadcast & Multicast Cluster 23.sept 2005

Harald Loktu, Telenor R&D

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OUTLINE

1. Broadband Deployment i Europe2. Major Trends in Service Evolution3. Evolution in Video Coding4. Multicast Applied to IP-TV5. Scenarios in Service Provisioning6. Conclusion

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.

100 %

100 %

100 %

100 %

96 %

95 %

92 %

92 %

92 %

91 %

91 %

88 %

87 %

86 %

85 %

82 %

71 %

9 %

80 %

60 %

34 %

82 %

45 %

50 %

32 %

31 %

61 %

26 %

10 %

29 %

42 %

31 %

0 %

20 %

4 %

0 %

0 % 20 % 40 % 60 % 80 % 100 %

Belgium

Denmark

Luxembourg

Netherlands

Sw eden

UK

Finland

Iceland

Portugal

France

Germany

Average

Spain

Austria

Italy

Norw ay

Ireland

GreeceCable modem

DSL SOME OBSERVATIONS:On average 88% may have BB coverage by DSLLarge countries like Germany, UK, France are above 90%Most countries will expand DSL coverage to min 90-95%Generally capacity available will increase not only in urban/suburban areasDSL will migrate to ADSL 2+ and VDSL 2 technology well beyond 50 % coverage

National Coverage Dec 2004: Source IDATE

BB Deployment in Europe

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Major Trends in Service Evolution

Introduction of 3-play (*)– One of the most important drivers for increased access capacity– IP-TV with Standard Definition TV (576x720i) on MPEG-2– Will be accelerated by analogue shut-down throughout Europe

Introduction of HDTV is gaining momentum – HD-enabled Flat Panel TVs are becoming affordable– Next generation game consoles (ps3 & xbox360) support HD– High Definition DVD will be launched 2006-2007– Europe will introduce (720x1280p)-format

Multiple Screens and number of terminals– More TVs move into peoples homes (bedroom, kitchen etc)– TV-programming is moving to PD, PDA and mobile devices

(*): (VoIP, Internett access, IP-TV)

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Evolution in Video Coding (1)- MPG-2 vs MPG-4 compression

Required Service Capacity [Mbps]

HD

TVS

DTV

Screen R

esolution

0 5 10 15 20

MPG-2

MPG-2

MPG-4 (i)

MPG-4 (ii)

MPG-4 (i)

MPG-4 (ii)

(i): 2005/6 (ii): 2007-2010

Optimistic Forecast

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Evolution in Video Coding (2)- Deployment issues

Introduction of IP-TV in the European market– 3-5 Mb/s average MPEG-2 rate for SDTV– 50-100 channels with TV programing offered– Full service offering distribution occupy (0.15-0.5) Gbps– Most often single service provider

Future issus– Migration to MPEG-4 and HDTV start in the timeframe 2005-2010– European more often have 2 or more TV sets in the home– Video will be streamed other devices as well, so multi-resolution must

be handled– Open service provisioning will be pursued allowing for more than 1

service provider

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Evolution in Video Coding (3)- Migration from SDTV to HDTV

SDTV MPG-2

SDTV MPG-2

HDTV MPG-4

SDTV MPG-4

SDTV MPG-4

HDTV MPG-4

HDTV MPG-4

Total TV channel capacity

ReducedHDTV service

Full HDTV service

MPG2-to-MPG4 Migration Timeline

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Multicast Applied to IP-TV (2)- Solution 1: Static Multicast

TV/STB

PC

Brut .netITV server

ISP/Internett

PE

PE

PE

DSLAMxTU-R

F G

”ERX”

TV HE

onB.band

CA

TV/STB

PC

Core Netw.iTV server

ISP/Internet

PE

PE

PE

DSLAMxTU-R ”ERX”

TV HE

Content on B.band

CA

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Multicast Applied to IP-TV (3)- Solution 2: Dynamic Multicast

TV/STB

PC

Brut .netITV server

ISP/Internett

PE

PE

PE

DSLAMxTU-R

F G

”ERX”

TV HE

onB.band

CA

TV/STB

PC

Core Netw.iTV server

ISP/Internet

PE

PE

PE

DSLAMxTU-R ”ERX”

TV HE

Content on B.band

CA

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Multicast Applied to IP-TV(4)- Telenor IP-TV DSL trial short-term stats (*)

Aggregate Capacity with MC of TV channels

0

10

20

30

40

50

60

70

80

90

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

# active TV sessions

# ac

tive

TV c

hann

els

Serie1

App

. Con

stan

t

Sem

in-li

near

Tran

sitio

n

(*):Empirical data up to 600 customers

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Multicast Applied to IP-TV(5)

Usage– (40-65) % below 500 active TV-sessions/channels– (65-85)% between 500 and 3000 active TV-sessions/channels

Assumptions– Only empirical data up to 600 customers– Average values presented

Conclusions– For access points like Radio Base Stations and DSLAMs, aggregating

up to 2000-3000 customers, static allocation of multi-cast gives a vaste of capacity

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Scenario 1: TV over IP – Single SP

Content Integrator

Content Distributor

Canal Digital

Customer- to SP

IncumbantHead End

Content Distribution

Characteristics– Content only flows as a single copy through the system– One way of formatting content in terms of compression, security, encapsulation– Customers can only choose one service provider

Deployment– This scenario is used by most telcos/incumbents entering the IP-TV market with DSL

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Scenario 2: IP-TV Multiple SPs

Customer- Incumbant

xSP1 Head End

Incumbant Head End

xSP2 Head End

Cusomter - xSP1

Customer - xSP2

Canal Digital

Viasat

Bredbåndsaliansen

Content Integrators

Content Distributer

ContentDistribution

Characteristics– Content only flows as a multiple copies through the system– Several ways of formatting content in terms of compression, security, encapsulation– Customers may choose among several service provider

Deployment– This scenario may be used by power utilities for entering the IP-TV market with FFTH

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Scenario1 + Dynamic Multicast - Based on short-term stats

SDTV MPG-2

Total TV channel capacity

3000 TVs

SDTV MPG-4

HDTV MPG-4

SDTV MPG-2

HDTV MPG-4

SDTV MPG-4

HDTV MPG-4

(0.15-0.5) Gbps

Scenario 2: Multiple SPs will increase

max level

MPG2-to-MPG4 Migration Timeline

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Conclusions

Network Scalability– Dynamic Multicast has to be employed to achieve optimum capacity

utilisation – Especially, access aggregation targetting below 2000-3000

customers will highly benefit from dynamic multicast

Service Provisioning– Migration to HDTV (and MPEG-4 format) will boost the capacity

demand at least in an interim period due to parallell transmission– Open service provision will allow for multiple service provider, which

most likely increase the capacity demand further